Class 2

Windows Forms

Console Applications

Web forms & Web services

.NET Framework Base Class Libraries Common Language Runtime

Common Language Runtime

 Interprets a byte code: Microsoft Intermediate Language (IL).  Similar to Java Virtual Machine.  Some features:  Security Garbage collection Exception handling

 Also supports unmanaged code: machine code.

Consists of set of common rules followed by all the languages of .net framework Interoperability between objects and applications. The classes that follow by the rules specified by CLS are termed as CLS compliant classes  CTS provides a type system that is common across all languages.

 Removes much of the need for language specific libraries like C++'s STL.  Examples of items found in the Runtime: Basic types Collection classes Input/Output Graphical user interface library Access to traditional Windows facilities (COM, ADO)

User and Program Interfaces

Windows Forms

Web Forms

Console Applications

What are the areas of .NET?

• Define products implemented by Microsoft • Define client devices that use these services • Defines backbone for the applications to build on. • Managing, deploying and orchestrating the Web Services. • Microsoft provides a tool for building the .NET framework.

Solution (Microsoft Intermediate Language) Different Languages are Compiled into MSIL

Source code : Any languages

Development tools

Just-In-Time MS Intermediate Language

compiler

Platform specific code

.NET memory management

Code access security • Most software comes from web.A user doesn’t know whether a Web code is safe or not. • .NET allows an administrator to specify privileges that each managed code has. • You can specify these privileges in three level by modifying XML-based files  Enterprise  Machine  User